CN104389999B - Electric automobile three keeps off line traffic control automatic transmission - Google Patents

Electric automobile three keeps off line traffic control automatic transmission Download PDF

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Publication number
CN104389999B
CN104389999B CN201410469720.2A CN201410469720A CN104389999B CN 104389999 B CN104389999 B CN 104389999B CN 201410469720 A CN201410469720 A CN 201410469720A CN 104389999 B CN104389999 B CN 104389999B
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China
Prior art keywords
gear
electromagnetic clutch
gears
reverses
main shaft
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CN201410469720.2A
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CN104389999A (en
Inventor
曲金玉
任传波
田香玉
殷允朝
朱慎超
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Shandong University of Technology
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Shandong University of Technology
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H3/00Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H59/00Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02Selector apparatus
    • F16H59/04Ratio selector apparatus
    • F16H59/044Ratio selector apparatus consisting of electrical switches or sensors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/02Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
    • F16H61/0202Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
    • F16H61/0204Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal

Abstract

The invention discloses a kind of electric automobile three and keep off line traffic control automatic transmission.One end of input gear is connected with transmission input shaft, and the other end of input gear often engages with a gear high gear, two gear high gears, three gear high gears, the idle pulley that reverses gear successively along gear outer circumferential;One gear high gear, two gear high gears, three gear high gears, reverse gear high gear respectively by one gear electromagnetic clutch, two gear electromagnetic clutchs, three gear electromagnetic clutchs, reverse gear electromagnetic clutch with one gear main shaft, two gear main shafts, three gear main shafts, the main shaft that reverses gear connection;One gear main shaft, two gear main shafts, three gear main shafts, the main shaft that reverses gear are distributed in the periphery of transmission countershaft;Controlled the joint of each gear high gear and driving gear by ECU by each gear electromagnetic clutch and separate, it is achieved electric automobile three keeps off the gearshift of line traffic control automatic transmission line traffic control and controls.The present invention has compact conformation, uses the advantages such as line traffic control power shifting, mechanical or hydraulic gear-shifting parts.

Description

Electric automobile three keeps off line traffic control automatic transmission
Technical field
The invention belongs to technical field of electric vehicle transmission, relate to a kind of electric car automatic speed transmission, more precisely It is that a kind of electric automobile three keeps off line traffic control automatic transmission.
Background technology
For solving energy crisis and this two big world property difficult problem of environmental pollution, electric vehicle engineering becomes future automobile development Main way.As the power source of electric automobile, motor has a low speed perseverance moment of torsion, the mechanical property of high speed constant power, and And have wider speed adjustable range, the gear decelerators using fixed speed ratio in the most current transmission system of electric automobile more, but The output of motor is required the highest by it, needs motor to have higher peak torque and the widest speed adjustable range.In order to preferably Meeting dynamic property and cost-effectiveness requirement, the development of transmission system of electric automobile tends to keeping off change more.
Automatic transmission is widely used in the various vehicles such as automobile, electric automobile, engineering machinery.Existing automatic transmission Mainly there are hydraulic mechanical type automatic transmission (AT), metal band type ST (CVT), automatic mechanical transmission (AMT), double-clutch automatic transmission (DCT) four major types.
Above-mentioned four class automatic transmission all use electric-controlled hydraulic servomechanism installation, it is achieved shift process controls, and structure is complicated, one-tenth This height and add control difficulty and complexity.The actuator of especially DCT includes: by hydraulic pump, hydraulic valve and accumulator The oil supply mechanism of composition, by hydraulic pressure or motor-driven gear shifting actuating mechanism, by hydraulic pressure or motor-driven clutch control machine Structure.These hydraulic controls make variator complicated integral structure, cost high and add control difficulty and complexity.
Along with automotive electronic technology, the extensive application of the progressively ripe and automobile network communication technology of automatic control technology, X-by-wire on Automobile has become the development trend that automobile is following;Automobile line traffic control (X-By-Wire) technology is exactly with electric wire and electronics Controller replaces mechanically and hydraulically system, and through sensor, the control action of driver is become the signal of telecommunication, is input to automatically controlled Unit, is produced control signal by ECU and drives actuator to carry out action required.X-by-wire on Automobile can reduce parts Complexity, reduce hydraulic pressure and mechanical driving device, electric wire move towards the motility of layout simultaneously, expands the freedom of Automobile Design Space.
Summary of the invention
It is an object of the invention to overcome the deficiency of existing various automatic transmission technology, it is provided that one can realize power Gearshift, has again that reliability is high, the novel electric vehicle three of low cost keeps off line traffic control automatic transmission;It utilizes multiple independent annular The electromagnetic clutch arranged controls the liter downshift of variator.
Technical scheme is as follows:
A kind of electric automobile three is kept off line traffic control automatic transmission, in the middle of input gear, transmission input shaft, variator Axle, transmission output shaft, housing, ECU;One end of described input gear is connected with one end of transmission input shaft;Described Be fixedly connected sequentially on transmission countershaft three gear driven gears, two gear driven gears, gear driven gear, a driven tooth of reversing gear Wheel, one end away from input gear of countershaft is also fixedly connected with sun gear in the transmission;It is characterized in that:
Described input gear is along its gear outer circumferential successively with a gear high gear, two gear high gears, three gears at a high speed Gear, the idle pulley that reverses gear often engage;Described reverse gear idle pulley and often engage with the high gear that reverses gear;
Described one gear high gear with one gear electromagnetic clutch Partner connect, two gear high gears and two keep off electromagnetism from The Partner of clutch connects, and the Partner of three gear high gears and three gear electromagnetic clutchs connects, and reverses gear high gear and reverses gear The Partner of electromagnetic clutch connects;The drive end of a described gear electromagnetic clutch is connected by a gear main shaft and a gear driving gear Connecing, the drive end of two gear electromagnetic clutchs is connected by two gear main shafts and two gear driving gears, the active of three gear electromagnetic clutchs Holding and connected by three gear main shafts and three gear driving gears, the drive end of the electromagnetic clutch that reverses gear is by reversing gear main shaft and reversing gear actively Gear connects;A described gear driving gear and a gear driven gear often engage, and two gear driving gears and two gear driven gears are often nibbled Closing, three gear driving gears and three gear driven gears often engage, and reverse gear driving gear and often engage with the driven gear that reverses gear;
Described sun gear often engages with planetary gear, and described planetary gear also often engages with gear ring, and described planetary gear leads to Guo Qi center bearing bore rolls and is arranged on planet carrier, and described planet carrier is fixed on case of transmission, and described gear ring passes through spline Being connected to one end of transmission output shaft, the other end of transmission output shaft is as transmission power outfan;
A described gear main shaft, two gear main shafts, three gear main shafts, the main shaft that reverses gear are distributed in the periphery of transmission countershaft, and one The gear axis of main shaft, the two gear axis of main shaft, the three gear axis of main shaft, the axis of the main shaft that reverses gear and the axis of transmission countershaft Parallel to each other;
Be installed with on described housing a gear electromagnetic clutch brush, two gear electromagnetic clutch brushes, three gear electromagnetism from Clutch brush, reverse gear electromagnetic clutch brush, and a described gear electromagnetic clutch brush keeps cunning with a gear electromagnetic clutch slip ring Dynamic contact, two gear electromagnetic clutch brushes and two gear electromagnetic clutch slip rings keep sliding contact, three gear electromagnetic clutch brushes Keep sliding contact with three gear electromagnetic clutch slip rings, reverse gear electromagnetic clutch brush and the electromagnetic clutch slip ring that reverses gear keeps sliding Dynamic contact;The binding post of a described gear electromagnetic clutch brush is by wire and the one of the ECU phase in gear control output end Connecting, the binding post of two gear electromagnetic clutch brushes is connected with two gear control output end of ECU by wire, The binding post of three gear electromagnetic clutch brushes is connected with three gear control output end of ECU by wire, and reverse gear electricity The binding post of magnet clutch brush is connected with control output end that reverses gear of ECU by wire.
Described one gear the number of teeth of high gear, two gear the numbers of teeth of high gear, three gear high gears the number of teeth, reverse gear idle pulley The number of teeth be 0.3 ~ 0.7 times of the input gear number of teeth respectively, therefore input gear is increasing with each gear high gear and the idle pulley that reverses gear Speed subtracts torsion transmission;This speedup subtracts that to turn round kind of drive moment of torsion that electromagnetic clutch is subjected to be that transmission input shaft input is turned round 0.3 ~ 0.7 times of square, reduces the size of electromagnetic clutch, decreases the power consumption of electromagnetic clutch.
The electric automobile three of the present invention keeps off high gear, electromagnetic clutch, main shaft and the master that line traffic control automatic transmission is respectively kept off Moving gear is distributed in the periphery of transmission countershaft, spatially uses and is circular layout, and compact conformation shortens the axle of variator To length, save the space of change speed gear box.
The electric automobile three of the present invention keeps off line traffic control automatic transmission and uses line traffic control mode, is passed through wire by ECU completely Control the joint of electromagnetic clutch and separate, it is achieved the gearshift of the line traffic control of automatic transmission.
Compared with prior art, its advantage is the present invention:
(1) electric automobile three of the present invention keeps off line traffic control automatic transmission and eliminates the main clutch of conventional transmissions, synchronization Device and selector fork mechanism, use line traffic control (CBW-Control By Wire) mode to realize gearshift, passed through by ECU completely The joint of polygon control survey electromagnetic clutch with separate, it is achieved the gearshift of the line traffic control of automatic transmission, simplify structure, reduce into This, decrease fault rate simultaneously;
(2) electric automobile three of the present invention keeps off and often engaging, in shift process between each travelling gear of line traffic control automatic transmission Without cutting off power, decrease shift shock, improve acceleration and the driver comfort of automobile;
Accompanying drawing explanation
Fig. 1 is a gear and the structural representation of two gears that embodiment of the present invention electric automobile three keeps off line traffic control automatic transmission (Section A-A of Fig. 2).
Fig. 2 is the I-I cross section structure schematic diagram of embodiment of the present invention Fig. 1 and each gear high speed gear position scattergram.
Fig. 3 is three gears that embodiment of the present invention electric automobile three keeps off line traffic control automatic transmission and the structural representation reversed gear (section B-B of Fig. 2).
In figure: 1. motor 2. case of transmission 23. transmission input shaft 24. transmission countershaft 25. variator Output shaft 3. input gear 31. reverse gear idle pulley 41. 1 gear electromagnetic clutch 411. 1 keep off electromagnetic clutch slip ring 412. One gear electromagnetic clutch brush 42. 2 gear electromagnetic clutch 421. 2 gear electromagnetic clutch slip ring 422. 2 keeps off electromagnetic clutch Device brush 43. 3 gear electromagnetic clutch 431. 3 gear electromagnetic clutch slip ring 432. 3 gear electromagnetic clutch brush 44. falls The gear electromagnetic clutch 441. electromagnetic clutch slip ring 442. electromagnetic clutch brush 4Z1. mono-that reverses gear that reverses gear keeps off main shaft 4Z2. Two gear main shaft 4Z3. tri-keep off main shaft 4Z4. reverse gear main shaft 51. 1 gear high gear 52. 2 gear high gear 53. 3 gear height Speed gear 54. reverses gear high gear 61. 1 gear driving gear 62. 2 gear driving gear 63. 3 gear driving gear 64. Gear driving gear 71. 1 gear driven gear 72. 2 gear driven gear 73. 3 gear driven gear 74. reverses gear driven gear 91. sun gear 92. planetary gear 93. gear ring 94. planet carrier 100. ECU 100a. mono-keep off control output end 100b. bis-keep off the sub-100c. in control output end tri-keep off the sub-100d. in control output end reverse gear control output end son.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is described in detail, Obviously, described embodiment is only a part of embodiment of the present invention rather than whole embodiments;Based on the reality in the present invention Executing example, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise broadly falls into The scope of protection of the invention.
Include motor 1, input gear 3 as it is shown in figure 1, the electric automobile three of the present invention keeps off line traffic control automatic transmission, become Speed device power shaft 23, transmission countershaft 24, transmission output shaft 25, housing 2, ECU 100;One end of input gear 3 Being connected with one end of transmission input shaft 23, the other end of transmission input shaft 23 is connected with motor 1;Transmission countershaft 24 On be fixedly connected sequentially three gear driven gears 73, two gear driven gears 72, a gear driven gears 71, reverse gear driven gear 74, One end away from input gear 3 of countershaft 24 is also fixedly connected with sun gear 91 in the transmission.
Input gear 3 is along its gear outer circumferential successively with gear high gear 51, two gear high gear 52, three gear at a high speed Gear 53, the idle pulley 31 that reverses gear often engage, and often engage as in figure 2 it is shown, reverse gear idle pulley 31 with the high gear 54 that reverses gear.
In the present embodiment, gear high gear 51, two gear high gear 52, a three gear high gear 53 uses the identical number of teeth And physical dimension, decrease the kind of processing part, make gear high gear 51, a two gear high gear 52, three keep off high gear 53 is identical with the speed increasing ratio of input gear 3.
One gear high gear 51 is connected with the Partner of a gear electromagnetic clutch 41, two gear high gear 52 and two gear electromagnetism The Partner of clutch 42 connects, and three gear high gears 53 are connected with the Partner of three gear electromagnetic clutchs 43, high speed of reversing gear tooth Wheel 54 is connected with the Partner of the electromagnetic clutch 44 that reverses gear;One gear electromagnetic clutch 41 drive end by one gear main shaft 4Z1 with One gear driving gear 61 connects, and the drive end of two gear electromagnetic clutchs 42 keeps off driving gears 62 even by two gear main shaft 4Z2 and two Connecing, the drive end of three gear electromagnetic clutchs 43 is connected by three gear main shaft 4Z3 and three gear driving gears 63, and reverse gear electromagnetic clutch The drive end of 44 is connected with the driving gear 64 that reverses gear by reversing gear main shaft 4Z4;One gear driving gear 61 and a gear driven gear 71 Often engagement, two gear driving gears 62 often engage with two gear driven gears 72, and three gear driving gears 63 are normal with three gear driven gears 73 Engagement, reverses gear driving gear 64 and often engages with the driven gear 74 that reverses gear.
When the number of teeth of input gear 3 and a gear high gear 51 the number of teeth once it is determined that, a gear driving gear 61 keeps off with one The gear ratio of driven gear 71 determines the gear ratio of a gear;The gear ratio of two gear driving gears 62 and two gear driven gears 72 is certainly Determine the gear ratio of two gears;Three gear driving gears 63 and three gear driven gear 73 gear ratios determine the gear ratio of three gears.
It is installed with gear electromagnetic clutch brush 412, a two gear electromagnetic clutch brush 422, three on housing 2 and keeps off electromagnetism Clutch brush 432, reverse gear electromagnetic clutch brush 442, and a gear electromagnetic clutch brush 412 keeps off electromagnetic clutch slip ring with one 411 keep sliding contact, two gear electromagnetic clutch brushes 422 and two gear electromagnetic clutch slip rings 421 to keep sliding contact, three gears Electromagnetic clutch brush 432 and three gear electromagnetic clutch slip rings 431 keep sliding contact, reverse gear electromagnetic clutch brush 442 with The electromagnetic clutch slip ring 441 that reverses gear keeps sliding contact;The binding post of one gear electromagnetic clutch brush 412 is by wire and electricity The one gear 100a in control output end of control unit 100 is connected, and the binding post of two gear electromagnetic clutch brushes 422 passes through wire Being connected with the two of the ECU 100 gear 100b in control output end, the binding post of three gear electromagnetic clutch brushes 432 passes through Wire is connected with the three of the ECU 100 gear 100c in control output end, the binding post of the electromagnetic clutch brush 442 that reverses gear It is connected with the sub-100d in control output end of reversing gear of ECU 100 by wire.
ECU 100 is by controlling gear electromagnetic clutch brush 412, two gear electromagnetic clutch brush 422, a three gear electricity Magnet clutch brush 432, the energising of the electromagnetic clutch brush 442 that reverses gear or power-off, control gear electromagnetic clutch 41, a two gear electricity Magnet clutch 42, three gear electromagnetic clutch 43, the joint of the electromagnetic clutch 44 that reverses gear and separation;ECU 100 is by controlling One gear electromagnetic clutch brush 412, two gear electromagnetic clutch brush 422, three gear electromagnetic clutch brush 432, reverse gear electromagnetism from The power-on voltage of clutch brush 442 or the size of electric current, control gear electromagnetic clutch 41, two gear electromagnetic clutch 42, three gear Electromagnetic clutch 43, the reverse gear joint of electromagnetic clutch 44 and the speed of separation.
Sun gear 91 often engages with planetary gear 92, and planetary gear 92 also often engages with gear ring 93, and planetary gear 92 passes through Its center bearing bore rolls and is arranged on planet carrier 94, and planet carrier 94 is fixed on case of transmission 2, and gear ring 93 is fixed by spline In one end of transmission output shaft 25, the other end of transmission output shaft 25 is as transmission power outfan;In the present embodiment, The number of teeth of gear ring 93Z 93It is 50 teeth, the number of teeth of sun gear 91Z 91It is 18 teeth, the planetary number of teethZ 92It it is 16 Tooth.
One gear main shaft 4Z1, two gear main shaft 4Z2, three gear main shaft 4Z3, the main shaft 4Z4 that reverse gear are distributed in transmission countershaft 24 Periphery, and a gear main shaft 4Z1, two gear main shaft 4Z2, three gear main shaft 4Z3, the axis of reverse gear main shaft 4Z4 and transmission countershaft 24 Parallel to each other.
The rotation direction of motor 1 is in terms of transmission output shaft 25 end, and normal transmission direction is counterclockwise.
In the present embodiment, the tooth number Z of a gear high gear 5151, two gear high gears 52 tooth number Z52, three gear high speed teeth The tooth number Z of wheel 5353It is 20 teeth, the tooth number Z of the idle pulley 31 that reverses gear31Tooth number Z with the high gear 54 that reverses gear54It is 17 Individual tooth, the tooth number Z of input gear 33It is 43 teeth, the tooth number Z of i.e. one gear high gear 5151, two gear high gears 52 Tooth number Z52, three gear high gears 53 tooth number Z53It is the tooth number Z of input gear 330.47 times, the number of teeth of the idle pulley 31 that reverses gear Z31Tooth number Z with the high gear 54 that reverses gear54It is the tooth number Z of input gear 330.40 times, therefore input gear 3 and each gear height Speed gear is needed for speedup subtracts torsion transmission, and gear electromagnetic clutch 41, two gear electromagnetic clutch 42, a three gear electromagnetic clutch 43 0.47 times that moment of torsion is transmission input shaft 23 input torque, the moment of torsion needed for the electromagnetic clutch 44 that reverses gear is variator input 0.40 times of axle 23 input torque;Therefore reduce gear electromagnetic clutch 41, a two gear electromagnetic clutch 42, three and keep off electromagnetic clutch Device 43, reverse gear the moment of torsion of electromagnetic clutch 44, volume and power consumption.
The electric automobile three further illustrating the embodiment of the present invention below in conjunction with Fig. 1, Fig. 3 keeps off the individual of line traffic control automatic transmission Forward gear and the power transmission line reversed gear.
One gear transmission: gear electromagnetic clutch 41 energising engages, and remaining electromagnetic clutch power-off separates, the torsion of motor 1 Square passes to input gear 3 by transmission input shaft 23, and this moment of torsion is passed to a gear high gear by input gear 3 further 51, then power is passed by the engagement of a gear driving gear 61 and a gear driven gear 71 by the gear electromagnetic clutch 41 engaged Being handed to sun gear 91, the central spline finally by gear ring 93 exports to transmission output shaft 25, it is achieved a gear transmission.Take a gear The number of teeth of driving gear 61Z 61It is 21 teeth, the number of teeth of a gear driven gear 71Z 71It is 45 teeth, the tooth of gear ring 93 NumberZ 93It is 50 teeth, the number of teeth of sun gear 91Z 91Be 18 teeth, then a gear gear ratioi 1For:i 1=(Z 51/Z 3)*( Z 71/Z 61)*( Z 93/Z 91)。
Two gear transmissions: two gear electromagnetic clutch 42 energisings engage, and remaining electromagnetic clutch power-off separates, the torsion of motor 1 Square passes to input gear 3 by transmission input shaft 23, and this moment of torsion is passed to two gear high gears by input gear 3 further 52, then power is passed by the engagement of two gear driving gears 62 and two gear driven gears 72 by the two gear electromagnetic clutchs 42 engaged Being handed to sun gear 91, the central spline finally by gear ring 93 exports to transmission output shaft 25, it is achieved two gear transmissions.Take two gears The number of teeth of driving gear 62Z 62It is 27 teeth, the number of teeth of two gear driven gears 72Z 72It is three nineteen teeth, the tooth of gear ring 93 NumberZ 93It is 50 teeth, the number of teeth of sun gear 91Z 91Be 18 teeth, then two gear gear ratioi 2For:i 2=(Z 52/Z 3)*( Z 72/Z 62)*( Z 93/Z 91)。
Three gear transmissions: three gear electromagnetic clutch 43 energisings engage, and remaining electromagnetic clutch power-off separates, the torsion of motor 1 Square passes to input gear 3 by transmission input shaft 23, and this moment of torsion is passed to three gear high gears by input gear 3 further 53, then power is passed by the engagement of three gear driving gears 63 and three gear driven gears 73 by the three gear electromagnetic clutchs 43 engaged Being handed to sun gear 91, the central spline finally by gear ring 93 exports to transmission output shaft 25, it is achieved three gear transmissions.Take three gears The number of teeth of driving gear 63Z 63It is 32 teeth, the number of teeth of three gear driven gears 73Z 73It is 34 teeth, the tooth of gear ring 93 NumberZ 93It is 50 teeth, the number of teeth of sun gear 91Z 91Be 18 teeth, then three gear gear ratioi 3For:i 3=(Z 53/Z 3)*( Z 73/Z 63)*( Z 93/Z 91)。
Reverse gear: the electromagnetic clutch 44 that reverses gear energising engages, and remaining electromagnetic clutch power-off separates, the torsion of motor 1 Square passes to input gear 3 by transmission input shaft 23, and this moment of torsion is passed to idle pulley 31 He of reversing gear by input gear 3 further Reverse gear high gear 54, then by the electromagnetic clutch 44 that reverses gear of joint by driving gear 64 and the driven gear 74 that reverses gear of reversing gear Power is transferred to sun gear 91 by engagement, and the central spline finally by gear ring 93 exports to transmission output shaft 25, it is achieved fall Gear transmission.Take the number of teeth of the driving gear 64 that reverses gearZ 64It is 14 teeth, the number of teeth of the driven gear 74 that reverses gearZ 74It it is 52 Tooth, the number of teeth of gear ring 93Z 93It is 50 teeth, the number of teeth of sun gear 91Z 91It is 18 teeth, then back gear ratiosi 4For:i 4= (Z 54/Z 3)*( Z 74/Z 64)*( Z 93/Z 91)。
Neutral: gear electromagnetic clutch 41, a two gear electromagnetic clutch 42, three keeps off electromagnetic clutch 43, reverse gear electromagnetic clutch Device 44 is in power-off released state, it is achieved neutral.
Above in conjunction with accompanying drawing, embodiments of the present invention are explained in detail, but the present invention is not limited to above-mentioned enforcement Mode, in the ken that art those of ordinary skill is possessed, it is also possible to without departing from present inventive concept Under premise, various changes can be made.

Claims (3)

1. electric automobile three keeps off a line traffic control automatic transmission, including input gear (3), transmission input shaft (23), variator Jackshaft (24), housing (2), ECU (100);One end of described input gear (3) and the one of transmission input shaft (23) End connects;Be fixedly connected sequentially on described transmission countershaft (24) three gear driven gears (73), two gear driven gear (72), One gear driven gear (71), the driven gear that reverses gear (74), one end away from input gear (3) of countershaft (24) is also in the transmission It is fixedly connected with sun gear (91);It is characterized in that:
Described input gear (3) along its gear outer circumferential successively with one gear high gear (51), two gear high gear (52), three Gear high gear (53), the idle pulley that reverses gear (31) often engage;The described idle pulley that reverses gear (31) is often engaged with the high gear that reverses gear (54);
Described gear high gear (51) is connected with the Partner of gear electromagnetic clutch (41), and two gears high gear (52) are with two The Partner of gear electromagnetic clutch (42) connects, and three gears high gear (53) keep off the Partner of electromagnetic clutch (43) even with three Connecing, the high gear that reverses gear (54) is connected with the Partner of the electromagnetic clutch that reverses gear (44);Described gear electromagnetic clutch (41) Drive end is connected with gear driving gear (61) by gear main shaft (4Z1), and the drive end of two gears electromagnetic clutch (42) passes through Two gears main shaft (4Z2) are connected with two gears driving gear (62), and the drive end of three gears electromagnetic clutch (43) is by three gear main shafts (4Z3) with three gear driving gear (63) be connected, the drive end of the electromagnetic clutch that reverses gear (44) by the main shaft that reverses gear (4Z4) with reverse gear Driving gear (64) connects;Described gear driving gear (61) often engages with gear driven gear (71), two gear driving gears (62) often engaging with two gears driven gear (72), three gears driving gear (63) often engage with three gears driven gear (73), master of reversing gear Moving gear (64) often engages with the driven gear that reverses gear (74);
Be installed with on described housing (2) gear electromagnetic clutch brush (412), two gear electromagnetic clutch brush (422), three Keep off electromagnetic clutch brush (432), reverse gear electromagnetic clutch brush (442), and described gear electromagnetic clutch brush (412) is with one Gear electromagnetic clutch slip ring (411) keeps sliding contact, two gears electromagnetic clutch brush (422) and two gear electromagnetic clutch slip rings (421) keeping sliding contact, three gears electromagnetic clutch brush (432) keep slip to connect with three gears electromagnetic clutch slip ring (431) Touch, reverse gear electromagnetic clutch brush (442) and the electromagnetic clutch slip ring (441) that reverses gear keeps sliding contact;A described gear electromagnetism The binding post of clutch brush (412) is connected with gear control output end (100a) of ECU (100) by wire Connecing, the binding post of two gears electromagnetic clutch brush (422) is by two gear control output end of wire with ECU (100) (100b) being connected, the binding post of three gears electromagnetic clutch brush (432) is by three gear controls of wire with ECU (100) Lead-out terminal processed (100c) is connected, and the binding post of the electromagnetic clutch brush (442) that reverses gear passes through wire and ECU (100) control output end (100d) of reversing gear is connected.
2. electric automobile three as claimed in claim 1 keeps off line traffic control automatic transmission, it is characterised in that: a described gear main shaft (4Z1), two gears main shaft (4Z2), three gears main shaft (4Z3), the main shaft that reverses gear (4Z4) be distributed in the periphery of transmission countershaft (24), And the axis of gear main shaft (4Z1), the axis of two gears main shaft (4Z2), the axis of three gears main shaft (4Z3), the main shaft that reverses gear (4Z4) Axis is parallel to each other with the axis of transmission countershaft (24).
3. electric automobile three keeps off line traffic control automatic transmission as claimed in claim 1, it is characterised in that: a described gear high gear (51) the number of teeth, the number of teeth of two gears high gear (52), the number of teeth of three gears high gear (53), the number of teeth of the idle pulley that reverses gear (31) are divided Wei 0.3 ~ 0.7 times of the number of teeth of input gear (3).
CN201410469720.2A 2014-09-15 2014-09-15 Electric automobile three keeps off line traffic control automatic transmission Active CN104389999B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106763543B (en) * 2017-01-09 2019-04-02 山东理工大学 Three gear automatic speed variator of electric car line traffic control
CN106594106B (en) * 2017-01-09 2018-05-15 山东理工大学 Line traffic control friction and the electromagnetic clutch of engaged transmission engagement device

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CN103807413A (en) * 2014-03-11 2014-05-21 赵克刚 Mechanical transmission

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CN102705455A (en) * 2012-05-18 2012-10-03 山耐斯气动液压(磐安)有限公司 Electromagnetic clutch speed changer
CN202937741U (en) * 2012-11-26 2013-05-15 无锡京华重工装备制造有限公司 Speed change box structure
CN103807413A (en) * 2014-03-11 2014-05-21 赵克刚 Mechanical transmission

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